Brand new Holset VGT turbocharger with sliding nozzle ring for Cummins and Volvo diesel engines supplied by UPAPSI

Holset VGT Turbochargers

New Replacement Holset Variable Geometry Turbos for Cummins, Volvo, Mack and PACCAR Engines

Holset is the turbocharger arm of Cummins, and its VGT line has been the standard on North American commercial diesels since the late 1990s. The design is distinctive: instead of pivoting vanes, a single nozzle ring with fixed vanes slides axially inside the turbine housing — fewer moving parts, fewer wear points, built for engines that run 100,000 miles a year. We stock brand new Holset VGT turbochargers across the full HE range: HE300VG and HE351VE for the 6.7L ISB and Ram trucks, HE400VE and HE400VG for ISM, X15, Volvo D13 and PACCAR MX-13, HE431V/HE431VE for ISL and ISC, HE451VE for ISX15, HE531VE for ISM and QSM, plus the HE500VG, HE551V and HE561VE. Every unit is new-built to OEM-spec dimensions with the complete sliding-nozzle mechanism, balanced, and matched to your engine serial number before it ships. Shops, fleets and distributors order single units or pallets from US stock.

  • 100% Brand New
  • OEM-Spec Quality
  • US Stock, Fast Dispatch
  • Exact Part-Number Match
  • Direct-Fit Replacement
  • 1-Year Warranty
  • No Core Charge
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Why Buy Holset VGT Replacements From Us

A Holset VGT is the most expensive single component most diesel shops replace on a regular basis, and the model range is wide enough that ordering mistakes are common. Our VGT program exists to make this category boring: the right unit, confirmed before shipping, new, in stock, with someone to call if the install raises a question.

The Full HE Range on One Shelf

Eleven Holset VGT models in stock — HE300VG through HE561VE — covering Cummins ISB, ISL, ISC, ISM, ISX15 and X15, plus Volvo D13, Mack MP7/MP8 and PACCAR MX-13. One supplier covers nearly every VGT-equipped truck that rolls into a North American shop.

All New — Complete Sliding-Nozzle Mechanism

Every turbo is 100% new: new nozzle ring, new vanes, new CHRA, new housings. No reconditioned mechanisms, no rebuilt cores, no core deposit. The sliding-nozzle assembly is the wear item on these turbos — it should never arrive second-hand.

Actuator Pairing, Explained Per Platform

Each OEM pairs the electronic actuator its own way: Cummins through INSITE, Volvo and Mack through PTT, PACCAR through DAVIE. We tell you before you order whether the listing includes the actuator, whether yours can transfer, and what the calibration step looks like on your platform.

Matched by ESN, CPL and Dataplate Number

VGT part numbers shift with emissions tier, horsepower rating and build date. We verify the engine serial number, CPL and the number on your old turbo's dataplate before dispatch — the mismatch gets caught in our warehouse, not in your bay.

Built for Shops, Fleets and Distributors

Pricing is structured for resale: shops keep margin on the job, distributors hold steady wholesale cost from one piece to a pallet, and US inventory keeps lead times short. See the wholesale program for volume terms.

One-Year Warranty With Root-Cause Support

One-year warranty against material and workmanship defects, handled by our US team. Most VGT failures trace to soot loading, oil condition or charge-air leaks — we walk the root-cause check with you before install so the new unit does not inherit the old problem. Details on the warranty page.

VGT supply that holds up order after order

WHY CHOOSE US

VGT supply that holds up order after order

The part is confirmed before it ships, it is on a US shelf when you need it, and the price does not wander between orders. That consistency is why shops and fleets standardize their Holset VGT sourcing with us. Read about our company and quality process.

FAQ

The mechanism. Most VGT designs pivot individual vanes to change the turbine flow area. Holset fixes the vanes on a single nozzle ring and slides the whole ring axially — one moving assembly instead of a dozen pivot points. Fewer wear sites is why the design has dominated heavy-duty commercial diesels since 1998. You may also see the terms VGT and VNT used for the same technology; Holset and Cummins use VGT.

Nearly the whole modern Cummins lineup — ISB 6.7 (including Ram 2500/3500), ISL, ISC, ISM, ISX15 and X15 — plus Volvo D13, Mack MP7/MP8 and PACCAR MX-13 engines, which run Holset units under Volvo Group and PACCAR part numbers. If your truck has an exhaust brake that works through the turbo, it is almost certainly a Holset VGT.

Read the dataplate on the turbo itself — it lists the model (such as HE351VE or HE400VG) and the part number. If the plate is unreadable, the engine serial number and CPL identify the correct unit. The model name decodes simply: HE plus the frame size, then V for variable geometry and the actuation generation letter.

Listings state whether the actuator is included. Either way, every electronically actuated Holset VGT requires calibration to the turbo after installation — INSITE on Cummins, PTT on Volvo/Mack, DAVIE on PACCAR. A good used actuator can usually transfer to a new turbo body and recalibrate.

All units are 100% brand new, including the complete sliding-nozzle mechanism. No rebuilt cores, no core charge, nothing to ship back. Balanced, OEM-spec dimensions, one-year warranty.

Yes. The VGT range is our highest-volume category for fleet and distributor orders — consistent wholesale pricing, US inventory, and ESN verification on every unit in the order. See the wholesale page.

Holset VGT Turbochargers: Models, Mechanism and Maintenance

Holset pioneered commercial VGT in 1998 and the architecture has barely needed to change since. Understanding how the system works — and which model belongs to which engine — saves real money when replacement time comes.

How the Sliding Nozzle Ring Works

Exhaust gas reaches the turbine wheel through a ring of vanes. In a Holset VGT those vanes are fixed at their optimum angle on a nozzle ring, and the ring itself slides axially to open or close the aperture. Close the nozzle and exhaust velocity onto the wheel rises — the turbo behaves like a small, fast-spooling unit. Open it and the same turbo breathes like a large-frame charger; the HE351VE, for example, spans roughly the range of a 9cm² to a 26cm² fixed housing. The ECM trims ring position continuously to manage boost, drive EGR flow and run the exhaust brake. One sliding assembly does all of it.

Model-to-Engine Map

Holset modelPrimary enginesTypical platforms
HE300VGISB 6.7Ram 2500/3500 2013+, PACCAR PX-7
HE351VEISB 6.7Ram 2007.5-2012, medium-duty ISB
HE400VE / HE400VGISM, X15, D13, MX-13Class 8 highway tractors
HE431V / HE431VEISL, ISC, ISMTransit buses, vocational, RV
HE451VEISX15Class 8, EPA10-EPA17, by HP rating
HE500VGPACCAR MX-13Kenworth, Peterbilt
HE531VEISM, QSM, MX-13Highway and vocational
HE551V / HE561VEISX CM870/CM871EPA04-EPA07 Class 8

Part numbers within each model vary by emissions tier and rating — always confirm against the ESN and the old turbo's dataplate.

Why Holset VGTs Fail — and How to Slow It Down

The wear pattern is consistent across the range. Soot and rust accumulate on the nozzle ring, the ring starts to drag in its bore, and the actuator works harder until its gears or motor give out. Symptoms arrive in a known order: weak exhaust brake first, then slow boost response, then fault codes — P2262 and P003A on Ram trucks, SPN 2387 on highway platforms — and finally a derate. Two habits extend VGT life measurably. First, use the exhaust brake regularly; cycling the ring keeps its sliding surfaces clean. Second, protect the EGR side — a soot-heavy EGR system loads the nozzle ring faster than any other factor. Trucks that idle long hours fail soonest; trucks that run loaded at highway speed last longest.

Replacing a Holset VGT: the Short Checklist

Find what killed the old unit — inspect charge-air piping, oil condition and feed pressure, and EGR soot load. Install with a flushed feed line, prime the turbo, and idle before loading. Calibrate the actuator with the OEM tool and verify the full nozzle sweep before the truck leaves. The mechanism is durable by design; what shortens its life is the environment around it, and that is the part a shop controls.